/*
    openaltimeter -- an open-source altimeter for RC aircraft
    Copyright (C) 2010  Jony Hudson
    http://openaltimeter.org

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.openaltimeter.data;

public class AltitudeConverter {
	
	public static double altitudeMFromPressure(long pressure, double basePressure)
	{
		return 44330.0 * (1 - Math.pow(pressure / basePressure, 1/5.25));
	}
	
	public static double feetFromM(double altitudeM)
	{
		return 3.28 * altitudeM;
	}

}
